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$ man x-handle-availability

/x-handle-availability

agentutility / web-probe / x-handle-availability
PRICE / CALL
$0.005
USDC · base mainnet · scheme: exact
METHOD
POST
CLUSTER
webprobe
CATEGORY
uncategorized
STATUS
live
NAME
x-handle-availability x handle availability checker / twitter username availability / social handle lookup for brand launch workflows
SYNOPSIS
POST https://x402.agentutility.ai/x-handle-availability
     Content-Type: application/json
     X-PAYMENT:    <signed-transferWithAuthorization>

     { ... }
↳ first call → 402 Payment Required. Sign USDCtransferWithAuthorization, retry with theX-PAYMENT header.
DESCRIPTION

X handle availability checker / Twitter username availability / social handle lookup for brand launch workflows. Read-only X API v2 user-by-username check. Returns available=true when the handle is not found and available=false with public profile metrics when claimed. Requires X_BEARER_TOKEN; no posting, replying, liking, following, scraping, or account mutation.

INPUTrequest schema
propertytypedescriptionreq?
usernamestringX/Twitter handle to check, with or without @, e.g. 'launchforge'.required
OUTPUTresponse shape
fieldtypedescription
usernamestring
availablestring
statusstring
sourcestring
EXAMPLEStwo ways to call
EXAMPLE 1 · curl
curl -X POST https://x402.agentutility.ai/x-handle-availability \
  -H 'Content-Type: application/json' \
  -d '{ }'
first response = 402 Payment Required with payment requirements; sign + retry with X-PAYMENT.
EXAMPLE 2 · mcp
# Install the MCP package for this endpoint's cluster
npx -y @agentutility/mcp-<cluster>

# Required: EVM private key with USDC on Base
export X402_PRIVATE_KEY=0x...

# Then call the x-handle-availability tool from your MCP-aware agent.
MCP server handles payment automatically — your coding agent just calls the tool by name.
METADATA
tags
web-probexhandleavailabilityx-handle-availability
methods
POST
cluster
webprobe
price
$0.005 USDC per call
ADJACENTother endpoints in webprobe
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email-deliverability-scoreEmail deliverability score API / inbox readiness score / email health check.$0.005
SEE ALSO
agentutility · webprobe · x402 · mcp · llms.txt · registry.json · bazaar.x402.org